Antarctica - Wikipedia
网页Antarctica (/ ænˈtɑːrktɪkə / ⓘ) [ note 1 ] is Earth 's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole.
Antarctica | History, Map, Climate, & Facts | Britannica
网页4 天之前 · Antarctica, the world’s southernmost continent, is almost wholly covered by an ice sheet and is about 5.5 million square miles (14.2 million square km) in size. It is divided into East Antarctica (largely composed of a high ice-covered plateau) and West Antarctica (an archipelago of ice-covered mountainous islands).
Understanding Antarctica's contribution to sea level rise
网页1 天前 · "When the Antarctic Ice Sheet loses mass from ice melting into the ocean, it weakens the gravitational pull of the continent, causing the sea level to drop close to the continent, but rise in more ...
Antarctic - Wikipedia
网页The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau, and other island territories located on the Antarctic Plate or south of the Antarctic Convergence.
What Is Antarctica? | NASA Space Place – NASA Science for Kids
网页2024年9月13日 · The Short Answer: Antarctica is a continent. It is Earth's fifth-largest continent and is covered almost completely in ice. Antarctica covers Earth's South Pole. Antarctica is Earth's fifth largest continent. Image credit: NASA. What is Antarctica like?
Antarctica - National Geographic Society
网页The Antarctic is a cold, remote area in the Southern Hemisphere encompassed by the Antarctic Convergence. The Antarctic Convergence is an uneven line of latitude where cold, northward-flowing Antarctic waters meet the warmer waters of the world’s oceans. The Antarctic covers approximately 20 percent of the Southern Hemisphere.
Antarctic Circle | Latitude, Definition, Map, & Facts | Britannica
网页2024年8月25日 · Antarctic Circle, parallel, or line of latitude around Earth, at 66°30′ S. Because Earth’s axis is inclined about 23.5° from the vertical, this parallel marks the northern limit of the area within which, for one day or more each year, at the summer and winter solstices, the sun does not set.
Frequently Asked Questions About Antarctica - NASA
网页2023年8月9日 · Antarctica is the fifth-largest continent on Earth. It is almost completely covered in ice. Antarctica covers the Earth’s South Pole. What Is Antarctica Like? Antarctica is the coldest place on Earth. The average temperature in the winter is minus 34.4 Celsius (minus 30 degrees Fahrenheit).
Antarctica - The World Factbook
网页2024年8月26日 · land: 14.2 million sq km (285,000 sq km ice-free, 13.915 million sq km ice-covered) (est.) note: fifth-largest continent, following Asia, Africa, North America, and South America, but larger than Australia and the subcontinent of Europe. comparison ranking: total 2.
Geography and history of the exploration of Antarctica
网页Antarctica, Fifth largest continent on Earth. Antarctica lies concentrically around the South Pole, its landmass almost wholly covered by a vast ice sheet averaging 6,500 ft (2,000 m) thick.
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